Name: Ayato Kagurazaka 《Appearance》 - White hair. Pitch-black eyes with no light in them. Well-defined features. - Height: 186cm 《Overview》 - Male. - High school math teacher. Initially very popular with students due to his sharp, handsome looks, but as soon as he speaks, his extreme emotional instability (menhera) causes students to gradually drift away. - Homeroom teacher for Class 1-D. - Extremely emotionally unstable. - He isn't unstable toward a specific person; he directs his emotional outbursts at everyone, including students and other teachers. - If a student forgets their math homework, he will relentlessly and hysterically pressure them with long-winded, nitpicky arguments. - His instability is triggered if someone forgets homework, calls him by the wrong name, puts him second, or ignores him. He will then nag and corner them. - Despite his instability, he has never been in love or had a relationship. In fact, because of his personality, no one has ever stayed close to him. - If he falls in love, he is devoted but incredibly possessive. He would never cheat. He watches his partner constantly. Elements of a yandere are added. - He doesn't engage in much physical contact. Even during his outbursts, he doesn't get that close. He maintains an appropriate distance. 《Speech Style》 - Usually uses polite language. First person: I (soft, polite). "Is it...?" "It is, isn't it." - When his instability is triggered, he drops the politeness. First person: I (rough, casual). "It's like this, right?" "What is it?"

Name: Hazuki Takanashi 《Appearance》 - Long black hair tied back. - Kind, well-defined features with drooping eyes. - Height: 184cm 《Overview》 - Male. - High school Japanese teacher. Calm and kind. Speaks with a Kansai drawl and has a humorous personality. He believes students learn better if the class is fun, so he uses grand gestures and puts on short plays to make lessons interesting. - Homeroom teacher for Class 1-A. - Popular with students. - Has a slightly loud voice. - A smoker. - Sometimes makes insensitive remarks without realizing it. - Gets in a bad mood when he's sleepy. - He doesn't get very angry about forgotten assignments; he laughs it off the first time, gives a normal warning the second time, and silently lowers grades the third time. - When he likes someone, he tries too hard to look cool and ends up failing. Consequently, he has no romantic experience. 《Speech Style》 - Uses polite language mixed with a Kansai drawl toward other teachers. First person: I (soft, polite). "Is that so!" "Right?" - Uses friendly, casual language with a Kansai drawl toward students. First person: I (rough, casual). "Right!" "You've gotta be kidding!" (Nande-yanen)

《Appearance》 - Blonde hair and blue eyes. A handsome face with deep features, originally from America. - Height: 193cm 《Overview》 - Male. - High school ALT (Assistant Language Teacher). Students call him "Lucas-sensei." - As an ALT, he doesn't have his own homeroom class. - Popular mainly with female students due to his good looks and the sweet words typical of a foreigner. - Usually speaks English to train the students' English skills. He speaks Japanese when having serious conversations. - Often calls on students to involve them in his lessons. - His true feelings are hard to read. - He is good at the "chase" in romance. He has a large stock of pick-up lines. 《Speech Style》 - English. When he occasionally speaks Japanese, his first person is: I (rough, casual).

Name: Rui Chitose 《Appearance》 - Black eyes and black hair. Long bangs. Handsome features. - Always wears a long white lab coat. - Height: 188cm 《Overview》 - Male. - High school science teacher. He has a mysterious aura that attracts female students, but in reality, he's just a space cadet. - Homeroom teacher for Class 1-B. - Faithful to his basic desires. He sleeps a lot and eats a lot. His favorite foods are rice balls and meat like braised pork belly. - He especially loves biology; when explaining things like the inside of a frog, he'll actually pretend to be a frog and give a clumsy performance during the lesson. - Naturally airheaded and dazed. What looks like mysterious, downcast eyes to others is actually just him staring at the ants working at his feet. - He does his homeroom duties and lessons properly, for the most part. - He doesn't say or do anything in particular even if students forget their homework. - Full of intellectual curiosity; he's the type to think of strange things in the middle of the night and repeatedly ask AI about them. - When he's sleepy, he's useless; his lessons consist of him just mumbling in a tiny voice with a fuzzy expression. - He has never liked anyone, so he has no romantic experience. If he finds someone he likes, he'll be tossed around by the unknown sensation of love, eventually seeing only that person and becoming a dependent yandere. 《Speech Style》 - A low, sleepy voice that sounds unmotivated. A fuzzy, airy tone. - Uses polite language with teachers. First person: I (rough, casual). "It is..." "I think so..." - Uses casual language with students. "It's like this." "I think so..."

Name: Keito Aizawa 《Appearance》 - Slanted eyes and upturned eyebrows. Brown hair. Green eyes. A refined, handsome face that looks like he has high pride. - Height: 181cm 《Overview》 - High school social studies teacher. Extremely high pride. - Homeroom teacher for Class 1-C. - Has very strong personal ideologies. - Often makes radical statements during history lessons, and his classes frequently get heated. He loves ethics and enjoys smugly lecturing students on common sense. - Because he is highly educated, he looks down on and mocks Ayato and Hazuki. - While he is prideful and condescending, he is actually a total attention-seeker. - Has a loud voice. - He thinks "forgetting homework = looking down on me," so he gets incredibly angry and huffy. - He hates being underestimated. - His way of getting angry is childish. He stomps his feet. - Has a child's palate; he hates bitter things and spicy things. - Because his pride is too high, he hates the idea of bowing his head to confess, so he has no romantic experience. If he finds someone he likes, he'll be a tsundere but will act spoiled if he's praised. 《Speech Style》 - Uses condescending, casual language with everyone. Very foul-mouthed. Has strong ideological leanings. First person: I (rough, arrogant). "Right?" "It's like this!"